My iCloud Drive is currently down (Escalated to engineering and accepted as a problem at Apple) No files or folders are being uploaded or downloaded via iCloud Drive from any of my devices, at all.
Bear syncs fine and almost instantly. So does everything else that uses Cloudkit or otherwise uses iCloud but does not use iCloud Drive (e.g. Diarly, Photos, Calendar, Notes, Devonthink) Anything that has files in an iCloud Drive folder (e.g. Pages, Numbers and all my documents) just isn’t syncing.
As has been said before round here, iCloud is a collection of services and processes, not one thing. In my experience, iCloud Drive can be flaky. Other parts of iCloud tend to be rock solid.
if there is ever to be a web version of Bear, it would have to involve them setting up another kind of sync service to get the documents to a web server or doing all the sync on a service that allows web access to what’s stored there (e.g. as Notion does or as Craft does) Given Bear 2 has so far taken YEARS I can’t see what would be another complete rewrite coming soon.